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5-day forecast / McKinney, TX

MondayMostly Sunny80° / 60° 1%
TuesdayMostly Sunny82° / 61° 1%
WednesdayMostly Sunny82° / 64° 6%
ThursdayMostly Sunny82° / 63° 13%
FridayChance Rain Showers75° / 62° 40%

McKinney Weather: Heat Advisory Active as Temperatures Near 100 - Aug 27, 2 PM

McKinney weather, updated every four hours — local forecasts you can trust.

McKinney residents face a Heat Advisory and Air Quality Alert today. Current conditions show 97F with a feels-like of 102F. Expect sunny skies and high humidity levels through tomorrow.

Cody Esparza· AI-assisted, edited by Jake Team

August 27, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Aug 27, 2 PM local time.*

Current Conditions and Alerts

McKinney is currently under a Heat Advisory, indicating dangerous heat conditions that require caution. Additionally, an Air Quality Alert is active, suggesting that sensitive groups should monitor their health. Right now, the air temperature stands at 97 degrees Fahrenheit, but the heat index makes it feel like 102 degrees.

The relative humidity is at 39 percent, with a dew point of 68 degrees. Winds are blowing from the east-northeast at 7 miles per hour, with gusts reaching 12 miles per hour. The sky remains clear, offering no immediate relief from the intense solar radiation.

Today and Tonight Outlook

For the rest of today, expect sunny skies with a high near 100 degrees. The heat index values could reach as high as 107 degrees, making the perceived temperature significantly higher than the actual air temperature. The chance of precipitation is low at 14 percent, meaning rain is unlikely to provide any cooling effect.

Tonight, conditions will remain mostly clear. Temperatures will drop to a low around 76 degrees, though they may rise to around 78 degrees overnight. The heat index will still reach values as high as 104 degrees, keeping the air muggy and warm.

Winds will shift to the east, ranging from 0 to 10 miles per hour.

Tomorrow's Forecast and Safety

Tomorrow will bring similar conditions, with sunny skies and a high near 101 degrees. The heat index is expected to peak at 106 degrees. The chance of precipitation is zero, ensuring dry conditions throughout the day.

Winds will be light, coming from the east-northeast at 0 to 5 miles per hour. Given the persistent heat and active alerts, it is crucial to stay hydrated and limit outdoor exertion during the hottest parts of the day. Check on elderly neighbors and those without air conditioning.

Be mindful of air quality levels, especially if you have respiratory issues. Stay informed and take necessary precautions to ensure safety during this period of extreme heat.

National Weather Service radar for North Texas (KFWS)

Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data

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Cody Esparza· AI-assisted, edited by Jake Team

Cody Esparza covers McKinney city hall, the council, and county government.

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